David A. Sánchez-Hernández, PhD, is a full Professor holding the Antennas & Propagation and 5G Chair position at Universidad Politécnica de Cartagena, Spain, and founder of EMITE Ingeniería, S.L., Spain. Steven R. Best, PhD, is Senior Principal Electromagnetics and Sensor Systems Engineer with The MITRE Corporation, located in Bedford, MA. Manos M. Tentzeris, PhD, is a Ken Byers Professor in the area of Flexible Electronics with the School of ECE, Georgia Tech, USA. Sungtek Kahng, PhD, is a Professor with Incheon National University, Head of Korea’s Ministry of Science and ICT-sponsored research and development center on RF and Satellite Communication and an Executive Director at the Korean Institute of Communication and Information Science and the Korean Institute of Electrical Engineering. Gert Frølund Pedersen, PhD, is a Full Professor heading the Antenna, Propagation and Millimetre-Wave Systems Laboratory at Aalborg University, Denmark.